metallic component coated with Fractal Black coating

$complex component accurately coated with fractal black coating$

$3 circular metallic components coated with fractal black coating from the inside$

$big golden component coated with Acktar's fractal black coating$

$circular component coated with fractal black coating$

$2 components after fractal black coating been applied$

$metallic component partly coated with fractal black coating$

$several metallic components partly coated with fractal black coating$

$lots of tiny gold components coated with fractal black coating$

$metallic component partly coated with fractal black coating$

$complex component accurately coated with fractal black coating$

$3 circular metallic components coated with fractal black coating from the inside$

$big golden component coated with Acktar's fractal black coating$

$circular component coated with fractal black coating$

$2 components after fractal black coating been applied$

$metallic component partly coated with fractal black coating$

$several metallic components partly coated with fractal black coating$

$lots of tiny gold components coated with fractal black coating$

$metallic component partly coated with fractal black coating$

Fractal Black^TM Coating

Broadband UV thru LWIR
Typical applications: space, infrared imaging, passive-thermal control, instrumentation, cooled IR detector parts
Essentially zero outgassing
Vacuum and thermal-vacuum cycling qualified
Operating temperature range: -269°C to 450°C
No particulation
Only a few microns thick
Compatible with virtually all substrate materials

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Specifications

Adhesion

Metals, glass, ceramics, polymers

Adhesion test (ref ECSS-Q-ST-70-13C)

Coated pieces withstand scotch tape test (3M853 Crystal Clear tape, strength of 13N per 25mm), without any evidence of coating removal.

Outgassing CVCM (%)

0.001

Outgassing RML (%)

0.2

Coating chemical content

Completely inorganic

Surface resistivity

≤2X10^6Ω/□

Cleanability

"Coated pieces withstand cleaning with ethanol, IPA or acetone with no change in optical and technical characteristics. Magic Black™, Metal Velvet™ and Litho Black™ should be cleaned very gently."

Parts shape

Humidity Resistance

MIL-C- 48497A

Certificates

ROHS, REACH, ISO 9001:2015, AS9100

Typical Properties

Fractal black coating reflectance chart

Fractal Black^TM is a high-performance, inorganic coating that is used in space and many other applications. The coating is very thin which makes it an ideal choice for optical sharp corner design. It offers exceptional thermal and optical properties, exhibits essentially zero outgassing, no particulation, and is compatible with almost any substrate material.

Operational wavelengths

VIS-FIR

Coating thickness

5-14µm

Emissivity 3-10µm

> 97

Emissivity 3-30µm

> 88

Working temperature (°C)

-269 to 380

Working temperature (°K)

4 to 653

Weight of coating (mg/cm²)

1.6 - 3.2

Moderate abrasion resistance

(ref MIL-C-48497A)

Additional Details

Fractal Black^TM was thoroughly tested and qualified for thermal cycling, thermal vacuum cycling, cryogenic temperature performance, outgassing, space atomic oxygen, reflectance after environmental exposure, and adherence. Detailed BRDF data is available for VIS. SWIR, MWIR and LWIR.

Fractal Black^TM is in extensive use in many applications such as infrared imaging, passive-thermal control management, instrumentation, and cooled IR detectors/sensors. It is applied in a variety of space programs including among others: